This uses baking powder, NOT yeast.

The machine also includes dedicated settings for Gluten-Free baking, Express (80-minute) loaves, Pasta/Pizza dough , Jam , and Yogurt . Key Baking Tips from the Book

Your machine cannot do true sourdough cycles, but this 2021 hack works perfectly.

--- Silvercrest Bread Maker Sbb 850 E1 Recipe Book 2021 Link

This uses baking powder, NOT yeast.

The machine also includes dedicated settings for Gluten-Free baking, Express (80-minute) loaves, Pasta/Pizza dough , Jam , and Yogurt . Key Baking Tips from the Book --- Silvercrest Bread Maker Sbb 850 E1 Recipe Book 2021

Your machine cannot do true sourdough cycles, but this 2021 hack works perfectly. This uses baking powder, NOT yeast